sha3_final(9)

💖 sha3_final(9) — Kernel API Manual 💖

okay so bestie, this is the sha3_final(9) page from the Kernel API Manual, and it’s literally all about wrapping up a SHA-3 message digest. no cap.

🌸 NAME 🌸

sha3_final — Finish computing a SHA-3 message digest.

✨ SYNOPSIS ✨

void sha3_final (struct sha3_ctx *ctx , u8 *out );

🎀 ARGUMENTS 🎀

• ctx — The context to finalize; must have been initialized. yes, initialized, bestie 💅
• out — (output) The resulting SHA3-224, SHA3-256, SHA3-384, or SHA3-512 message digest, matching the init function that was called. Note that the size differs for each one; see SHA3_*_DIGEST_SIZE.

💖 DESCRIPTION 💖

After finishing, this zeroizes ctx. So the caller does not need to do it. That’s the whole point, and it’s iconic 🫶.

🌈 CONTEXT 🌈

Any context. fr fr.

🦋 SEE ALSO 🦋

• Kernel file ./include/crypto/sha3.h struct sha3_ctx(9)
• sha3_zeroize_ctx(9)
• struct shake_ctx(9)
• shake_zeroize_ctx(9)
• sha3_224_init(9)
• sha3_256_init(9)
• sha3_384_init(9)
• sha3_512_init(9)
• sha3_update(9)
• shake128_init(9)
• shake256_init(9)
• shake_update(9)
• shake_squeeze(9)
• sha3_224(9)
• sha3_256(9)
• sha3_384(9)
• sha3_512(9)
• shake128(9)
• shake256(9)

Okay that’s the page, bestie 🍓. It comes from ./include/crypto, dated October 2026, and it’s the sha3_final(9) manual page. Slay ✨💅